7 × 13 × 139 × 311

Prime Factor Structure

Factorization String 7 × 13 × 139 × 311

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 4,892,160

Proper Divisor Sum 958,321

Digit Sum / Digital Root 38 (Root: 2)

Adjacent Primes #3933823 ← → #3933841

1 7 13 91 139 311 973 1,807 2,177 4,043 12,649 28,301 43,229 302,603 561,977 3,933,839

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

3,933,839 11,801,518 5,900,759 17,702,278 8,851,139 26,553,418 13,276,709 39,830,128 19,915,064 9,957,532 4,978,766 2,489,383 7,468,150 3,734,075 11,202,226 5,601,113 16,803,340 8,401,670 4,200,835 12,602,506 6,301,253 18,903,760 9,451,880 4,725,940 2,362,970 1,181,485 3,544,456 1,772,228 886,114 443,057 1,329,172 664,586 332,293 996,880 498,440 249,220 124,610 62,305 186,916 93,458 46,729 140,188 70,094 35,047 105,142 52,571 157,714 78,857 236,572 118,286 59,143 177,430 88,715 266,146 133,073 399,220 199,610 99,805 299,416 149,708

Other feeder batches with open delivery windows. Each feeder keeps its own target batch.